The White Sox and Blue Jays have agreed to a deal that sends starting pitcher Edwin Jacksonand third baseman Mark Teahen to the Blue Jays for relief pitcher Jason Frasor and starting pitcher Zach Stewart, according to a tweet from FoxSports.com’s Ken Rosenthal.

SI.com’s Jon Heymantweets that Jackson will be flipped from the Blue Jays to the Cardinals in exchange for outfielder Colby Rasmus.

Jackson is 7-7 with a 3.92 ERA. Teahen is hitting .203 with three home runs and 11 RBIs.

Frasor is in his eighth big league season, all of which have been with the Blue Jays, and is 2-1 with a 2.98 ERA in 2011. Stewart has started three games this season for the Blue Jays and is 0-1 with an ERA of 4.86.